Croque Monsieur Casserole

Looking for a delicious and easy-to-make dish that’s perfect for any occasion? Look no further than this Croque Monsieur Casserole! This recipe combines the classic flavors of a Croque Monsieur sandwich into a comforting and crowd-pleasing casserole. As a seasoned home cook, I can assure you that this dish is not only tasty but also a breeze to whip up.
Why You’ll Love This Recipe?
- Rich and savory flavors that will tantalize your taste buds.
- Quick and simple prep time, making it perfect for busy weeknights or lazy weekends.
- Ideal for meal prep, as it can be made ahead of time and reheated when needed.
Ingredient Notes:
- Sourdough English muffins, cut into cubes: Adds a delicious tangy flavor and hearty texture to the dish.
- Butter: Provides richness and helps create a golden crust.
- Dijon mustard: Adds a subtle kick of flavor.
- Eggs and half-and-half: Bind the casserole together and create a creamy texture.
- Deli sliced ham: Adds a savory and salty element.
- Swiss or Gruyere cheese: Melts beautifully and adds a nutty flavor.
- Milk, all-purpose flour, nutmeg, and Parmesan cheese: Create a creamy and flavorful sauce for the casserole.
Step-by-Step Instructions:
- Preheat your oven to 350°F and grease a baking dish.
- In a large skillet, melt butter and sauté the ham until slightly browned.
- In a bowl, whisk together eggs, half-and-half, Dijon mustard, salt, and pepper.
- Layer the English muffin cubes, ham, and cheese in the baking dish.
- Pour the egg mixture over the layers and press down gently.
- In a saucepan, melt butter, whisk in flour, then gradually pour in milk while whisking.
- Add nutmeg and Parmesan cheese to the sauce, then pour it over the casserole.
- Bake for 35-40 minutes, or until golden and set.
- Let it cool slightly before serving.
Helpful Tips:
- For a vegetarian version, swap the ham for sautéed mushrooms or spinach.
- Use stale bread for a firmer texture in the casserole.
- Store any leftovers in an airtight container in the refrigerator for up to 3 days.
Expert Tips for the Best Results:
- Let the casserole sit for a few minutes after baking to allow the flavors to meld together.
- Serve with a side of mixed greens dressed with a light vinaigrette for a well-rounded meal.
Serving Suggestions:
This Croque Monsieur Casserole pairs perfectly with a crisp green salad, a glass of white wine, or a cup of hot soup.

Storage and Reheating Tips:
To store, cover the casserole with foil or plastic wrap and refrigerate. Reheat in the oven at 350°F until warmed through.
Frequently Asked Questions:
- Can I use regular sandwich bread instead of English muffins?
Yes, you can use any bread of your choice, but sourdough English muffins add a unique flavor. - Can I freeze this casserole?
Yes, you can freeze the casserole before baking. Thaw in the refrigerator overnight before baking. - Can I substitute the ham with bacon?
Absolutely! Bacon will add a smoky flavor to the dish. - Can I make this casserole ahead of time?
Yes, you can assemble the casserole a day ahead and bake it when ready to serve.
Conclusion:
In conclusion, this Croque Monsieur Casserole is a must-try for any food lover. With its rich flavors, easy prep, and versatility, it’s sure to become a favorite in your recipe rotation. Give it a go and let me know how it turns out! Enjoy!
PrintCroque Monsieur Casserole
This Croque Monsieur Casserole combines the classic flavors of a French sandwich with a comforting casserole twist. Layers of sourdough English muffins, ham, and cheese are baked in a rich custard mixture for a delicious brunch or dinner option.
- Prep Time: 20 mins
- Cook Time: 45-50 mins
- Total Time: 1 hr 10 mins
- Yield: 6–8 servings 1x
- Category: Main-course
- Method: Baking
- Cuisine: French
- Diet: Vegetarian
Ingredients
Main Ingredients:
- 6 sourdough English muffins, cut into cubes
- 10 tablespoons butter, divided
- 2 tablespoons Dijon mustard
- 8 large eggs
- 1 ¼ cups half-and-half
- 1 ½ teaspoons kosher salt, divided
- 3/4 teaspoon freshly ground black pepper, divided
- 1/2 pound deli sliced ham
- 3 cups grated Swiss or Gruyere cheese, divided
Sauce Ingredients:
- 2 cups milk
- 4 tablespoons all-purpose flour
- 1/8 teaspoon grated nutmeg
- 3 tablespoons freshly grated Parmesan cheese
Instructions
- Preheat Oven: Preheat the oven to 350°F (175°C) and butter a 9×13-inch baking dish.
- Prepare Bread Layer: In a large skillet, melt 4 tablespoons of butter. Add the cubed English muffins and toast until golden brown. Remove from heat and spread Dijon mustard over the toasted muffins.
- Assemble Layers: Layer the toasted English muffins with ham and 2 cups of cheese in the prepared baking dish.
- Make Custard: In a mixing bowl, whisk together eggs, half-and-half, 1 teaspoon salt, and 1/2 teaspoon pepper. Pour the custard over the layers in the baking dish.
- Prepare Sauce: In a saucepan, melt the remaining 6 tablespoons of butter. Whisk in flour and cook for 1 minute. Slowly whisk in milk, nutmeg, remaining salt, and pepper. Cook until thickened. Stir in Parmesan cheese.
- Finish and Bake: Pour the sauce over the casserole and sprinkle with the remaining cheese. Bake for 45-50 minutes until the top is golden brown and the custard is set.
Notes
- This casserole can be assembled the night before and baked in the morning for an easy breakfast option.
- You can customize this recipe by adding vegetables like spinach or mushrooms to the layers.
Nutrition
- Serving Size: 1 serving
- Calories: 450 kcal
- Sugar: 4 g
- Sodium: 980 mg
- Fat: 32 g
- Saturated Fat: 17 g
- Unsaturated Fat: 11 g
- Trans Fat: 0 g
- Carbohydrates: 22 g
- Fiber: 1 g
- Protein: 20 g
- Cholesterol: 220 mg
Keywords: French casserole, brunch recipe, savory bread pudding